Summerboard/Winterboard

well just yesterday i jailbroke my 2.1 ipod touch. i remember awhile ago you could get themes from installer and use summer board to apply them. my question is, what app do i get to select what theme to have on my touch? i searched installer and cydia for summer board and i couldnt find it.

Hi.
I have a problem with my winterboard.
I set up a theme with a video as a wallpaper. Now everything works, but when I start the Musicplayer and than go back to the home screen, there's no video in the background. Just the black screen.
I have tryed to reboot but that doesn't help.
I have got an IpodTouch with 8GB.
Firmware:2.1 and jailbroken.
Can anybody help me please?
Thanks